Rekensommen met eraf tot 100

Erafsommen
1.
60
–
50
=
2.
75
–
55
=
3.
100
–
30
=
4.
50
–
20
=
5.
80
–
30
=
6.
55
–
25
=
7.
25
–
0
=
8.
55
–
5
=
9.
5
–
5
=
10.
95
–
90
=
11.
35
–
20
=
12.
5
–
5
=
13.
75
–
60
=
14.
20
–
5
=
15.
45
–
30
=
16.
5
–
0
=
17.
100
–
90
=
18.
10
–
10
=
19.
15
–
5
=
20.
70
–
50
=
21.
40
–
15
=
22.
60
–
55
=
23.
95
–
95
=
24.
35
–
35
=
25.
10
–
10
=
26.
25
–
20
=
27.
10
–
10
=
28.
80
–
35
=
29.
90
–
5
=
30.
90
–
35
=
31.
95
–
80
=
32.
90
–
80
=
33.
35
–
15
=
34.
35
–
5
=
35.
35
–
20
=
36.
5
–
5
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
60
–
50
=
10
2.
75
–
55
=
20
3.
100
–
30
=
70
4.
50
–
20
=
30
5.
80
–
30
=
50
6.
55
–
25
=
30
7.
25
–
0
=
25
8.
55
–
5
=
50
9.
5
–
5
=
0
10.
95
–
90
=
5
11.
35
–
20
=
15
12.
5
–
5
=
0
13.
75
–
60
=
15
14.
20
–
5
=
15
15.
45
–
30
=
15
16.
5
–
0
=
5
17.
100
–
90
=
10
18.
10
–
10
=
0
19.
15
–
5
=
10
20.
70
–
50
=
20
21.
40
–
15
=
25
22.
60
–
55
=
5
23.
95
–
95
=
0
24.
35
–
35
=
0
25.
10
–
10
=
0
26.
25
–
20
=
5
27.
10
–
10
=
0
28.
80
–
35
=
45
29.
90
–
5
=
85
30.
90
–
35
=
55
31.
95
–
80
=
15
32.
90
–
80
=
10
33.
35
–
15
=
20
34.
35
–
5
=
30
35.
35
–
20
=
15
36.
5
–
5
=
0
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen